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Chemistry

Chemistry
Maximum permissible concentration of copper in drinking water in mg/L is

2
0.01
0.05
1

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Chemistry
Which of the following is colourless ?

Chlorine
Oxygen
Phosphorus
Sulphur

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Chemistry
Setting of plaster of paris involves

Reduction process
Hydration to form other hydrates
Dehydration process
Oxidation process

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Chemistry
The presence of Cobalt in Vitamin B12 was established for the first time by

Hydrolysis test
Borax-Bead test
Spectroscopy
Sodium Nitroprusside test

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Chemistry
Stalactites and Stalagmites form due to the precipitation of :

CaCO3
MgCO3
CaCl2
MgCl2

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Chemistry
Which is a natural colloid ?

Sodium chloride
Cane-sugar
Urea
Blood

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MORE MCQ ON Chemistry

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